Prisma 2 仅查询 return 与所有提供的标签 ID 关联的记录
Prisma 2 query to return records only that are associated with ALL of the provided tag IDs
我有原则和标签表。而且他们之间是多对多的关系(joined implicitly).
不使用 prisma.raw
,我如何 运行 以下查询?
SELECT p.id, p.title, p.description, p.createdAt, p.modifiedAt
FROM principle p
WHERE EXISTS (SELECT NULL
FROM _PrincipleToTag pt
WHERE pt.B IN (${tagIds.join(',')})
AND pt.A = p.id
GROUP BY pt.A
HAVING COUNT(DISTINCT pt.B) = ${tagIds.length})
我如何更新这个 Prisma 2 查询,使返回的原则只是与所有提供的 tagId 关联的原则?
export const principles = ({ tagIds }) => {
const payload = {
where: {
//TODO filter based on tagIds
},
}
return db.principle.findMany(payload)
}
The docs 提及 contains
和 in
以及 every
,但我找不到我正在尝试做的事情的例子。
我正在使用 RedwoodJs、Prisma 2、Apollo、GraphQL。
更新 回复评论:这里是SDL:
input CreatePrincipleInput {
title: String!
description: String
}
input CreatePrincipleWithTagsInput {
title: String!
description: String
tagIdsJson: String
}
input CreateTagInput {
title: String!
description: String
}
# A date string, such as 2007-12-03, compliant with the `full-date` format
# outlined in section 5.6 of the RFC 3339 profile of the ISO 8601 standard for
# representation of dates and times using the Gregorian calendar.
scalar Date
# A date-time string at UTC, such as 2007-12-03T10:15:30Z, compliant with the
# `date-time` format outlined in section 5.6 of the RFC 3339 profile of the ISO
# 8601 standard for representation of dates and times using the Gregorian calendar.
scalar DateTime
type Mutation {
createPrinciple(input: CreatePrincipleInput!): Principle
createPrincipleWithTags(input: CreatePrincipleWithTagsInput!): Principle
updatePrinciple(id: Int!, input: UpdatePrincipleInput!): Principle!
deletePrinciple(id: Int!): Principle!
createTag(input: CreateTagInput!): Tag!
updateTag(id: Int!, input: UpdateTagInput!): Tag!
deleteTag(id: Int!): Tag!
}
type Principle {
id: Int!
title: String!
description: String!
tags: [Tag]
createdAt: DateTime!
modifiedAt: DateTime!
}
type Query {
redwood: Redwood
principles(searchQuery: String, tagIds: [Int]): [Principle!]!
tags: [Tag!]!
tagsByLabel(searchTerm: String): [TagCount!]!
tag(id: Int!): Tag!
}
type Redwood {
version: String
}
type Tag {
id: Int!
title: String!
principles: [Principle]
description: String
createdAt: DateTime!
modifiedAt: DateTime!
}
type TagCount {
id: Int!
title: String!
count: Int!
principles: [Principle]
description: String
createdAt: DateTime!
modifiedAt: DateTime!
}
# A time string at UTC, such as 10:15:30Z, compliant with the `full-time` format
# outlined in section 5.6 of the RFC 3339profile of the ISO 8601 standard for
# representation of dates and times using the Gregorian calendar.
scalar Time
input UpdatePrincipleInput {
title: String
description: String
}
input UpdateTagInput {
title: String
description: String
}
你可以试试这样的
export const principles = ({ searchQuery, tagIds }) => {
const payload = {
where: {
OR: [
{ title: { contains: searchQuery } },
{ description: { contains: searchQuery } },
],
// using the `in` operator like this
tagId: { in: tagIds },
userId: userIdFromSession,
},
}
console.log('db.principle.findMany(payload)', payload)
return db.principle.findMany(payload)
}
这应该可以解决问题![=11=]
看起来您使用的不是 Prisma 2。Prisma 2 使用模型(而非类型),并且具有分类为 Principles[] 与 [Principles] 的数组。也许 Redwood 进行了转换(从未使用过)。
我在 Prisma 2 中创建了您的模型,并使用以下命令获取了一个原则,该原则具有与之关联的两个标签。请记住,其中的 ID 来自我的测试数据集。希望您可以将其修改为您的代码。如果没有,请用最少的代码创建一个 sandbox/playground 供我们测试。
export const principles = async ({ searchQuery, tagIds }) => {
const payload = {
where: {
OR: [
{ title: { contains: searchQuery } },
{ description: { contains: searchQuery } },
],
userId: userIdFromSession,
},
}
if (tagIds.length) {
const whereAnd = []
tagIds.forEach((tagId) => {
whereAnd.push({
tags: { some: { id: tagId } },
})
})
payload.where.AND = whereAnd
}
const result = await db.principle.findMany(payload)
return result
}
我有原则和标签表。而且他们之间是多对多的关系(joined implicitly).
不使用 prisma.raw
,我如何 运行 以下查询?
SELECT p.id, p.title, p.description, p.createdAt, p.modifiedAt
FROM principle p
WHERE EXISTS (SELECT NULL
FROM _PrincipleToTag pt
WHERE pt.B IN (${tagIds.join(',')})
AND pt.A = p.id
GROUP BY pt.A
HAVING COUNT(DISTINCT pt.B) = ${tagIds.length})
我如何更新这个 Prisma 2 查询,使返回的原则只是与所有提供的 tagId 关联的原则?
export const principles = ({ tagIds }) => {
const payload = {
where: {
//TODO filter based on tagIds
},
}
return db.principle.findMany(payload)
}
The docs 提及 contains
和 in
以及 every
,但我找不到我正在尝试做的事情的例子。
我正在使用 RedwoodJs、Prisma 2、Apollo、GraphQL。
更新 回复评论:这里是SDL:
input CreatePrincipleInput {
title: String!
description: String
}
input CreatePrincipleWithTagsInput {
title: String!
description: String
tagIdsJson: String
}
input CreateTagInput {
title: String!
description: String
}
# A date string, such as 2007-12-03, compliant with the `full-date` format
# outlined in section 5.6 of the RFC 3339 profile of the ISO 8601 standard for
# representation of dates and times using the Gregorian calendar.
scalar Date
# A date-time string at UTC, such as 2007-12-03T10:15:30Z, compliant with the
# `date-time` format outlined in section 5.6 of the RFC 3339 profile of the ISO
# 8601 standard for representation of dates and times using the Gregorian calendar.
scalar DateTime
type Mutation {
createPrinciple(input: CreatePrincipleInput!): Principle
createPrincipleWithTags(input: CreatePrincipleWithTagsInput!): Principle
updatePrinciple(id: Int!, input: UpdatePrincipleInput!): Principle!
deletePrinciple(id: Int!): Principle!
createTag(input: CreateTagInput!): Tag!
updateTag(id: Int!, input: UpdateTagInput!): Tag!
deleteTag(id: Int!): Tag!
}
type Principle {
id: Int!
title: String!
description: String!
tags: [Tag]
createdAt: DateTime!
modifiedAt: DateTime!
}
type Query {
redwood: Redwood
principles(searchQuery: String, tagIds: [Int]): [Principle!]!
tags: [Tag!]!
tagsByLabel(searchTerm: String): [TagCount!]!
tag(id: Int!): Tag!
}
type Redwood {
version: String
}
type Tag {
id: Int!
title: String!
principles: [Principle]
description: String
createdAt: DateTime!
modifiedAt: DateTime!
}
type TagCount {
id: Int!
title: String!
count: Int!
principles: [Principle]
description: String
createdAt: DateTime!
modifiedAt: DateTime!
}
# A time string at UTC, such as 10:15:30Z, compliant with the `full-time` format
# outlined in section 5.6 of the RFC 3339profile of the ISO 8601 standard for
# representation of dates and times using the Gregorian calendar.
scalar Time
input UpdatePrincipleInput {
title: String
description: String
}
input UpdateTagInput {
title: String
description: String
}
你可以试试这样的
export const principles = ({ searchQuery, tagIds }) => {
const payload = {
where: {
OR: [
{ title: { contains: searchQuery } },
{ description: { contains: searchQuery } },
],
// using the `in` operator like this
tagId: { in: tagIds },
userId: userIdFromSession,
},
}
console.log('db.principle.findMany(payload)', payload)
return db.principle.findMany(payload)
}
这应该可以解决问题![=11=]
看起来您使用的不是 Prisma 2。Prisma 2 使用模型(而非类型),并且具有分类为 Principles[] 与 [Principles] 的数组。也许 Redwood 进行了转换(从未使用过)。
我在 Prisma 2 中创建了您的模型,并使用以下命令获取了一个原则,该原则具有与之关联的两个标签。请记住,其中的 ID 来自我的测试数据集。希望您可以将其修改为您的代码。如果没有,请用最少的代码创建一个 sandbox/playground 供我们测试。
export const principles = async ({ searchQuery, tagIds }) => {
const payload = {
where: {
OR: [
{ title: { contains: searchQuery } },
{ description: { contains: searchQuery } },
],
userId: userIdFromSession,
},
}
if (tagIds.length) {
const whereAnd = []
tagIds.forEach((tagId) => {
whereAnd.push({
tags: { some: { id: tagId } },
})
})
payload.where.AND = whereAnd
}
const result = await db.principle.findMany(payload)
return result
}